Multiple casting machine



A pri 3 H. A. w. wooD 1,756,617

MULTIPLE CASTING MACHINE 2 Sheets-Sheet 1 Filed Aug. 19, 1926 April 29, 1930. H. A. w. WOOD 6,617

MULTIPLE CAST ING MACHINE Filed Aug. 19, 1926 2 Sheets-Sheet 2 Patented Apr. 29, 1930 ,UNITED STATES PATENT OFFICE Y HENRY A. WISE WOOD, OF NEW YORK, N. Y., ASSIG NOB TO WOOD NEWSPAI'EB HA- OEINEBY CORPORATION, OF NEW YORK, N. Y., A CORPORATION OF VIRGINIA nor/rum: cas'rnrc uxcnmn Application filed August 19, 1926. Serial No. 130,208.

This invention relates to a machine for casting metal, particularly for making stereotype printing plates in a plurality of molds or casting boxes.

The principal objects of this invention are to provide a single pump with a single spout so arranged as to deliver to each of the molds at different times; tofprovide the spout and certain pump connections in such relationship to each other that the pump itself will indicate to which mold it is to deliver, and to provide means whereby it cannot deliver to any other mold or to more than one mold at a time. plification of devices designed for supplying a plurality of molds wit metal. This invention therefore relates mainly to the pump and its relationship to the molds or casting oxes.

Further objects and advantages of the invention will appear hereinafter.

Reference is to be had to the accompanyingfirawings in which ig. 1 is a plan of a machine constructed in accordance with this invention;

Fig. 2 is a central sectional view of the pump taken on the line 2-2 of Fig. 1;

Figs. 3 and 4 are horizontal sectional views on enlarged scale of the pump on the line 3-4 showing the valve and handle in two difierent' positions; and

Fig. 5 is a side elevation of the valve plate.

I have shown the invention as applied to a .combined casting and finishing plant in which two casting boxes 10 are located with their axial lines intersecting at the center of a vertical shaft 11 on which a finishing machine 9 is pivoted. The details of this finishin machine do not constitute a part of this invention as they are fully shown in my co-pending. application, Serial No. 121,403, filed July 9, 1923, and they do not constitute a part of the present invention.

. It is suflicient to say that the finishin machine can swing from full line to dotted line rollers 13 on an arcuate handles 15 are shown. xes' shown are located position, supported by track 14. Operatin The two casting at an angle to each other, although that is not essential to this invention. The casting The invention also involves a sim-' boxes are shown in Fig. 1 in vertical position and two spouts 20-are shown adapted to deliver metal into the two casting boxes one at a time. These spouts, as shown in Fig. 2, are fixed to a platform 21 mounted on the top of the melting pct 22 or furnace and in stationary position. They also have pipes 23 extending down inside the melting pot and terminating in the top of the cylinder 24 thereof. These two spouts have openings at a distance apartin the top of the this cylinder and are adapted to be filled by the passage of metal upwardly from the cylinder.

The pump isshown of an ordinary simple type except with certain modifications as will appear. It comprises a column 25 prefera 1y cast integral with the platform 21 and cylinder 24. In this column is a rotatable hollow shaft 26 adapted to. swing back and forth, limited by stops 27.

The shaft is provided with a bracket 28 extending outwardly on which is pivoted a pump operating handle 29. This handle 29 operates the piston rod 30 in the usual way,

this rod extending down through the hollow shaft into the cylinder. The cylinder has ports 32 through which the metal flows into it and the raising of the piston 31 will force the metal up into the cylinder and into one of the ipes 23 and spouts 20.

Insi e the cylinder and at the top thereof is located a va ve plate 33 fixed to the hollow shaft 26 so as to turn with it. The plate is provided with a port- 34, located normally, directed under the handle 29 so that it will swing with the handle about the axis of the shaft 26 to two different positions. "In one of these positions it will register with one 23 and cause the metal to be of the pipes casting boxes '10. '-Indelivered to one of the the other position it will register with the other one and deliver to the other box. Therefore it is obvious that the operator turns the convenient device for deliverin to more than one mold, and it is not possib e for the operator to have any uncertainty in his mind as to what mold'the pump will deliver to.

When he pulls down on the operating hanly floats in stereotype metal and to the fact that the molten metal being pumped upward- 1y will naturally tend to force this plate into close contact with the lower surface of the cylinder head. This insures the exclusion of metal from the spout which happens to be closed by the valve.

Although I have illustrated and described only one form of the invention I am aware of 4 the fact that other modifications can be made therein by any person skilled in the art with out departing trom'the scope of the invention as expressed in the claims. I do not wish to be limited to all the details of construction herein shown and described, but what I do claim is 2- 1. In a stereotype-plate casting machine, the combination with a plurality of casting boxes, of a single means for filling the boxes with molten metal, a pouring spout terminating just over each casting box and means whereby the filling means can be operated to deliver to any spout and at the same time close the others. 2. In a stereotype plate casting machine, the combination with a plurality of casting boxes, of a single means for filling the boxes with molten metal, and a pouring spout terminating just over each casting box, said spouts being mounted in stationary position. 3. In a stereotype plate casting machine, the combination with a plurality of'casting boxes, of a single pump, a separate ouring spout terminating just over each ox extending thereto from the pump, pipes in the pump, each communicating with one spout, and a valve plate capable of establishing connection between the pump and any one pipe and closing the others.

Therefore,

5. -In a casting machine, the combination with a plurality of molds, of a pump adapted to deliver metal to any of said molds, the moldsbeing arranged at equal distances from the center of the pump, said pump having an operating handle mounted to turn, and a valve mounted to turn with the handle and having a port arranged to connect the pump with a mold when the pump handle is in a position pointing toward that mold.

In testimony whereof I have hereunto affixed my signature. j

' HENRY A. WISE WOOD.

4. In a casting machine, the combination A with a plurality of molds, of a-pump adapted to deliver metal to any of said molds, the molds being arranged at equal distances from the center of the pump, said pump having a piston and rod, an operating handle mounted to turn on the axis of the rod, and a valve mounted to turn with the handle and having a port arranged to connect the pump with one mold at a time according to the position of the handle. 

